I ordered an adapter (10.0x1) from ACS. This is the size I got off
this list as to what is needed for the oil pressure gauge post. Well...
it doesn't fit, the threads are finer on the oil pressure gauge sender
unit. Sooo.. what is the real thread size for the Oil pressure gauge
port on the 13B? What is a good source for an adapter to go from the oil
pressure port to pipe thread?
Wendell
Hi
Wendell,
Sorry if I'm
the one that steered you wrong on this. I have a note that M10x1.0
fits, and I'm sure it did fit the ones I've tried. There
was at least one other case where one of my noted sized didn't fit
someone else's housing, so it's possible they do change from one year to the
next.
Just to be
sure, are you talking about the actual threaded hole in the rear
housing? Seems I recall that the stock arrangement used a straight
fitting that extended out from the housing to the sender. If I'm
remembering that correctly, then the sender could be different from the
threaded hole in the housing.
Good
luck,
Rusty (just
back from a family reunion)
Rusty, I'll let you take
the blame.
The oil pressure sending
unit on my '87 13B appears to be 10x something. The adapter diameter is
right but threads are too course on the purchased adapter. Barry
mentions a 1/8 BSPT which I have never heard of (haven't heard of a lot of
things). I went to JC Whitney site and they show a 1/8x28 BSP adapter.
Barry,is this what you're referring to?
The port for the temp
sensor just forward of the oil pressure sensor port on my engine is smaller
than the oil pressure port and I have no idea what it is, but am going to
use the original temp sending unit case, drilled out to accept my solid
state sensor in this location.
It might be better to get
an original Mazda oil pressure sending unit (original one seeps oil) to fill
the hole and use a gauge that will be compatible with it and get oil for the
re-drive from some other source. Does anyone know if the Mazda sending
unit is compatible with after market gauges?
Could try getting
kit from JCW and see if any will work. Already wasted more on the one from
ACS.
Wendell